Pseudonym Authority writes: "Google has disabled user uploads and comments on the Korean version of its YouTube video portal in reaction to a new law that requires the real name of a contributor be listed along each contribution they make.

The rules, part of a Cyber Defamation Law, came into effect on April 1 for all sites with over 100,000 unique visitors per day. It requires that users provide their real name and national ID card number."Link to Original Source